[ICOM] Pushbuttons for an old IC-740

Ric Johnson ric at trumatrix.com
Wed Mar 13 13:05:45 EDT 2019


Hi Dave

There are mods on the Internet for both of those issues. Problem was, No DC on the contacts to keep them clean. Mods involve placing resistors and or chokes around the switch and relays involved. Do a search - if you can't find them let me know . I just did the one for the processor switch a few weeks back.

Ric




Sent from my BlackBerry 10 smartphone.
  Original Message  
From: Dave Thompson
Sent: Wednesday, March 13, 2019 08:42
To: icom at mailman.qth.net
Reply To: ICOM Reflector
Subject: [ICOM] Pushbuttons for an old IC-740

Hello,

I have an old IC-740 that works well but not worth taking the time to sell. Works well but I have two push buttons that are bad or going bad. The one for the processor will not allow power out unless I push it a couple of times for both CW or SSB to transmit full power. The pre selector push button does not seem to work on or off. I tried cleaning them so assume I need new push buttons. 

Anyone have the push buttons or a source for them? 

73 Dave K4JRB
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